What materials combined to form the topsoil?

weathered bedrock and wind-blown sand

decomposed humus and wind-blown sand

decomposed plant litter and weathered parent material

deposited sediment and decomposed plant litter

Consider hitting a golf ball with a golf club. If we call the force applied to the ball by the club the action force, identify the reaction force. A. the centrifugal force in the swing B. the force applied to the club by the hands C.

How much energy (in kilojoules) is required to melt 160 g of ice and raise the temperature to 77°C

Explique las diferencias entre mezcla y combinación. De un ejemplo de cada uno.

2 A boy mixed 500g of sugar and 120g of salt in 106g of lime juice. What will be the mass of the mixture? a. 720 g b. 620 g c. 726g d. 606g

What are the elements in the last column of the periodic table called?

How many moles of solid naf would have to be added to 1.0 l of 2.39 m hf?

The sun is composed entirely of oxygen and helium True or False?

What is the oxidation number for Mn in Mn2O7? (provide sign and number)

If you have 9900 g of donuts, how many donuts do you have if each donut has a mass of 150 g?

Particles which revolve around nucleus are called